Pheidippides (fĪdĭpˈĭdēz) [key], fl. 490 B.C., semilegendary Athenian courier sent to Sparta to request help when the Persians landed at Marathon. He ran 150 miles in two days. At the conclusion of the battle, he ran the 22 mi (35 km) back to Athens, where he reportedly shouted "Rejoice! We conquer!" and then died of exhaustion.
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